Making a Lissajous Figure: 2 Questions

[Drao92]

I made my first Lissajous figure with the informations i read on internet and i have 2 questions.
First: Is it correct? x=sin(omega*t), y=sin(omega*2t)
Secondow to make Lissajous figure for triangle waves? If sombody can explain me or give me somthing to read
https://www.physicsforums.com/attachment.php?attachmentid=45485&stc=1&d=1332694256

 

[VoxCaelum]

I don't think this should go in advanced physics...
But if you want to play around with lissajous figures you could check this out:
http://www.wolframalpha.com/input/?i=lissajous+figure
You can change the number in the boxes to change the figures.

 

[Drao92]

Thanks for help, but i found a video on youtube where it explains very well :).